1377159942 has 32 divisors (see below), whose sum is σ = 2812712832. Its totient is φ = 449406144.

The previous prime is 1377159929. The next prime is 1377159977. The reversal of 1377159942 is 2499517731.

It is a junction number, because it is equal to n+sod(n) for n = 1377159891 and 1377159900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55018 + ... + 76034.

It is an arithmetic number, because the mean of its divisors is an integer number (87897276).

Almost surely, 2^1377159942 is an apocalyptic number.

1377159942 is an abundant number, since it is smaller than the sum of its proper divisors (1435552890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377159942 is a wasteful number, since it uses less digits than its factorization.

1377159942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252.

The product of its digits is 476280, while the sum is 48.

The square root of 1377159942 is about 37110.1056587016. The cubic root of 1377159942 is about 1112.5720034531.

The spelling of 1377159942 in words is "one billion, three hundred seventy-seven million, one hundred fifty-nine thousand, nine hundred forty-two".